Horseshoe-calk.



GP. W. FENSIEMAKER. HORSBsHOP. GALK.

APPLICATION FILED JAN. 4, 1907.

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PATENTED DEC. 3, 1907.

GEORGE W. FENSTEMAKER, OF AMBOY, ILLINOIS.

HORSE sHoE-oALK.

Specification of Letters Patent.

Patented Dec. 3, 1907.

Application filed January 4:, 1907- Serial No. 350,831.

To all whom it may concern:

Be it known that I, GEORGE W. FENSTE- MAKER, citizen of the United States, residing at Amboy, in the county of Lee and State of Illinois, have invented certain new and useful Improvements in Horseshoe-Calks, of which the following is a specification.

This invention provides a calk for horseshoes which is practically self sharpening, while at the same time being lasting and susceptible of maintaining an edge to prevent slipping on icy surfaces.

A further purpose of the invention is to combine with a removable calk, means for securing the same when properly placed in position upon the shoe and which will admit of the calk being readily removed when desired, either to be substituted by a new calk, or for other purpose.

The invention consists of a calk havinga steel center and a sheathing of iron welded to the steel center and of such nature as to wear away and insure sufiicient projection of the steel center to provide a biting edge, the steel center and sheathing being of novel formation.

The invention further consists of a tongue, or extension, projected laterally from the base of the calk and adapted to be pressed into an opening provided in the shoe so as to interlock therewith and prevent possible turning of the calk and consequent loosening thereof.

The invention also further consists of the novel features, details of construction and combination of parts which hereinafter will be more particularly set forth, illustrated and finally claimed.

In the drawings hereto attached and forming a part of the specifications: Figure 1 is a perspective view of a horseshoe provided with calks and calk locking means embodying the invention. Fig. 2 is a sectional view of the toe portion of the horseshoe and a calk showing more clearly the structural details. Fig. 3 is a detail view in perspective of a calk. Fig. 4 is a longitudinal sectional view through one of the calks.

Corresponding and like parts are referred to in the following descriptlon and indicated in all the views of the drawings by the same reference characters.

The horseshoe 1 may be of any pattern, or make, and is provided with threaded openings 2 to receive the toe and heel calks, and with other openings, or depressions 3, a short distance from the respective openings 2, said openings 3 constituting elements of the lock.

means. The calks are provided with threaded. stems 4 to make screw-thread connection with the openings 2 and each calk has formed therewith a tongue, or extension 5 about in the plane of the base thereof, and which tongue, or extension, is adapted to have a portion pressed into the opening 3 adjacent to the opening 2 into which the threaded stem of the calk is fitted. The toe portion of the horseshoe has a single opening, or depression 3, which is centrally disposed between the threaded openings 2 and into which terminal portions of the tongues 5 of the toe calks are adapted to be pressed. The tongues, or extensions 5, are bendable or malleable to admit of a portion being pressed into the opening, or depression 3 by means of a suitable punch. The part pressed into the opening 3 forms a lock teat, or projection 6 which prevents turning of the calk and consequent loosening thereof. When it is required to remove a calk for any purpose, the terminal portion of the tongue provided With the lock teat or projection 6 is either cut 03 by means of a chisel, or is pressed outward away from the shoe by introducing the edge of a chisel between the extremity of the tongue and the shoe as may be found most advantageous.

Each calk is of composite structure and comprises a center 7 of steel and side pieces 8 of iron, the several parts being welded. The steel 7 is of a nature to admit of hardening, whereas the side pieces, or sheathing 8 is of Norway iron, or like material that does not harden after being heated and does not become tempered during the process of welding, and which while supporting and bracing the centrally disposed steel portion 7, is adapted to wear away and insure a sufficient projection of the steel center to provide a biting edge to prevent slipping on smooth or icy surfaces. The steel center 7 extends diametrically of the calk and is comparatively thin so as to insure the formation of an edge, whereas the side portions 8 gradually increase in thickness from the edge to the base in order to provide a substantial and firm support for the steel portion 7 as well as to supply a calk which will sustain the usage and strain to which a device of this character end of the latter being reduced and the shoulders at each side of the reduced portion acting jointly With the ends of the side pieces 8 to sustain the blows, Weight and strain to which the calk is subjected.

Having thus described the invention, What is claimed as new is:

1. A horseshoe calk of composite structure comprising a center of steel and a sheathing of comparatively soft iron Welded to opposite sides of thetsteel center, the said calk carrying a threaded stem by means of which it is secured in position, and the soft iron sheathing being formed With a laterally projecting arm designed to have the extremity thereof bent into an opening in the horse shoe to prevent the calk from Working loose.

2. In a device of the character described, the combination of a horseshoe having a pair of spaced threaded openings formed therein and also provided With a locking opening intermediate of the said threaded openings,

and a pair of horseshoe calks each being of a composite structure and comprising a steel center having a sheathing of comparatively soft iron Welded to opposite sides thereof, the said calks being provided With stems engag ing the said threaded openings, and the soft iron sheathing of each calk being formed With a lateral arm designed to have the extremity thereof bent into the before mentioned intermediate opening in the shoe to prevent the calk from Working loose.

In testimony whereof I am): my signature in presence of tWo Witnesses.

GEORGE W. FENSTEMAKER.

Witnesses:

F. J. SHAUGHNEssY, C. H. WOOSTER. 

